(1) Interest arising in a Contracting State and paid to a resident of the other Contracting State shall only be taxed in that other State provided that such a resident is its beneficial owner.
(2) The term "interest" as used in this Article means income from debt-claims of every kind, whether or not secured by mortgage and whether or not carrying a right to participate in the debtor's profits, and in particular, income from public funds and income from bonds or debentures, including premiums and prizes attached to such public funds, bonds or debentures. The term 'interests' does not however include any income covered under Article 10. Late- payment penalties shall not be considered interest under the meaning of this Article.
(3) The provisions of paragraph (1) of this Article shall not apply if the beneficial owner of the interest, being a resident of a Contracting State carries on in the other Contracting State in which the interest arises, a business activity through a permanent establishment situated therein, and the debt-claim in respect of which the interest is paid is effectively connected with such permanent establishment. In such case, the provisions of Article 7 shall apply.
(4) Where, by reason of a special relationship, either between the payer and the beneficial owner or between both of them and some other person, the amount of the interest, having regard to the debt-claim for which it is paid, exceeds the amount which would have been agreed upon by the payer and the beneficial owner in the absence of a similar relationship, the provisions of this Article shall apply only to the last mentioned amount. In such case, the excess part of the payments shall remain taxable according to the laws of each Contracting State, due regard being given to the other provisions of this Convention.